fuck everything

Currently In one of those moods whereby im feeling v fucked up and down , it just occur to me that im good for nothing like an extra person in the universe, i feel like im wasting my life nowadays because of all the shit that occurred to me and school , im just a nobody to most people eyes or either that im stupid to them , I dun even know what i want in life and unsure of what am i studying for besides getting a good job , Sometimes i just want to end my life and get away from everyone because i always feel insecure wherever i go, sometimes i just want to be in bed or in my room alone, the world is judgemental after all they judge how u dress and how u look like and the worse part is they can still talk about 'inner beauty' or claiming  'looks not important'. What isit with life , what is the purpose of living for me ? must as well die , just kill me.